As quoted from the linked post.
It looks like you’re part of one of our experiments. The logged-in mobile web experience is currently unavailable for a portion of users. To access the site you can log on via desktop, the mobile apps, or wait for the experiment to conclude.
This is separate from the API issue. This will actually BLOCK you from even viewing reddit on your phone without using the official app.
Archive.org link in case the post is removed.
I did this as well. Sad to see the content I created disappear, but at least now I can start reposting to a whole new fediverse 😅
That’s a positive at least. I’m still ripping data from my accounts, but afterwards bye bye!